z/OS Communications Server: SNA Customization
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Parameter list structure

z/OS Communications Server: SNA Customization
SC27-3666-00

Table 1. Summary of parameter lists for session management exit routine - function codes X'FE', X'00' - X'03'
FUNCTION BEGIN INITIAL AUTHORIZATION SECONDARY AUTHORIZATION INITIAL and FINAL ACCOUNTING
Offset Function Code X'FE' Function Code X'00' Function Code X'01' Function Codes X'02' and X'03'
Dec Hex        

0

0

 Environment vectors address: See Table 1 Environment vectors address: See Table 1 Environment vectors address: See Table 1 Environment vectors address: See Table 1

4

4

 Function code and related session information address: See Table 1 Function code and related session information address: See Table 1 Function code and related session information address: See Table 1 Function code and related session information address: See Table 1

8

8

 User Data Field Address User Data Field Address User Data Field Address User Data Field Address

12

C

 Exit Options Address: See Table 1 PLU Resource ID Control Vector Address: See Table 1 PLU Resource ID Control Vector Address: See Table 1 PLU Resource ID Control Vector Address: See Table 1

16

10

 Parameter string address from MODIFY EXIT, PARMS= command SLU Resource ID Control Vector Address: See Table 1 SLU Resource ID Control Vector Address: See Table 1 SLU Resource ID Control Vector Address: See Table 1

20

14

N/A

Session ID Address

Session ID Address

Session ID Address

24

18

N/A

Reserved

Reserved

Time of Day Address

28

1C

N/A

 OLU Gateway Information Vector Address: See Table 1 OLU Gateway Information Vector Address: See Table 1 OLU Gateway Information Vector Address: See Table 1

32

20

N/A

 DLU Gateway Information Vector Address: See Table 1 DLU Gateway Information Vector Address: See Table 1 DLU Gateway Information Vector Address: See Table 1

36

24

N/A

 OLU Adjacent SSCP Vector Address: See Table 1 OLU Adjacent SSCP Vector Address: See Table 1 OLU Adjacent SSCP Vector Address: See Table 1

40

28

N/A

 DLU Adjacent SSCP Vector Address: See Table 1 DLU Adjacent SSCP Vector Address: See Table 1 DLU Adjacent SSCP Vector Address: See Table 1

44

2C

N/A

Reserved

 Failing sense code address (for information about the failing sense code, see z/OS Communications Server: IP and SNA Codes)

N/A

48

30

N/A

Reserved

Reserved

N/A

52

34

N/A

 Session Initiation User Data Field Address: See Table 1

Reserved

N/A

56

38

N/A

 ILU Resource ID Control Vector Address: See Table 1 ILU Resource ID Control Vector Address: See Table 1

N/A

60

3C

N/A

N/A

N/A

N/A

64

40

N/A

N/A

N/A

N/A

68

44

N/A

 Session Authorization Data Vector Address: See Table 1 Session Authorization Data Vector Address: See Table 1 Session Authorization Data Vector Address: See Table 1

72

48

 VTAM® Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1

76

4C

N/A

 Session Management Data Area Address: See Table 1 Session Management Data Area Address: See Table 1 Session Management Data Area Address: See Table 1

80

50

N/A

 TCP/IP Information Control Vector Address, X'64' Address: See CV64 in SNA Formats, GA27–3136 TCP/IP Information Control Vector Address, X'64' Address: See CV64 in SNA Formats, GA27–3136 TCP/IP Information Control Vector Address, X'64' Address: See CV64 in SNA Formats, GA27–3136
Reg. 15 Return Code (Hex)

0

0,4,6,8,C

0,8

0
Table 2. Summary of parameter lists for session management exit routine - function codes X'04' - X'07'
FUNCTION GATEWAY PATH SELECTION XRF SESSION SWITCH ADJACENT SSCP SELECTION ALIAS SELECTION
Offset Function Code X'04' Function Code X'05' Function Code X'06' Function Code X'07'
Dec Hex        

0

0

 Environment Vectors Address: See Table 1 Environment Vectors Address: See Table 1 Environment Vectors Address: See Table 1 Environment Vectors Address: See Table 1

4

4

 Function Code and Related Session Information Address: See Table 1 Function Code and Related Session Information Address: See Table 1 Function Code and Related Session Information Address: See Table 1 Function Code and Related Session Information Address: See Table 1

8

8

 User Data Field Address User Data Field Address User Data Field Address User Data Field Address

12

C

 PLU Resource ID Control Vector Address: See Table 1 PLU Resource ID Control Vector Address: See Table 1 PLU Resource ID Control Vector Address: See Table 1 PLU Resource ID Control Vector Address: See Table 1

16

10

 SLU Resource ID Control Vector Address: See Table 1 SLU Resource ID Control Vector Address: See Table 1 SLU Resource ID Control Vector Address: See Table 1 SLU Resource ID Control Vector Address: See Table 1

20

14

 Session ID Address Session ID Address Session ID Address Session ID Address

24

18

Reserved

 Time of Day Address

Reserved

Reserved

28

1C

 Gateway Path Selection List Address: See Table 1 OLU Gateway Information Vector Address: See Table 1 SSCP Name List Address: See Table 1 OLU Gateway Information Vector Address: See Table 1

32

20

N/A

 DLU Gateway Information Vector Address: See Table 1

N/A

 DLU Gateway Information Vector Address: See Table 1

36

24

N/A

 OLU Adjacent SSCP Vector Address: See Table 1

N/A

 OLU Adjacent SSCP Vector Address: See Table 1

40

28

N/A

 DLU Adjacent SSCP Vector Address: See Table 1

N/A

 DLU Adjacent SSCP Vector Address: See Table 1

44

2C

N/A

N/A

N/A

 Alias Selection Input Parameter List Address: See Table 1

48

30

N/A

N/A

N/A

 Alias Selection Output Parameter List Address: See Table 1

52

34

N/A

N/A

N/A

Reserved

56

38

N/A

N/A

N/A

 USERVAR Resource ID Control Vector Address: See Table 1

60

3C

N/A

N/A

N/A

N/A

64

40

N/A

N/A

N/A

N/A

68

44

 Session Authorization Data Vector Address: See Table 1

N/A

 Session Authorization Data Vector Address: See Table 1 Session Authorization Data Vector Address: See Table 1

72

48

 VTAM Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1

76

4C

 Session Management Data Area Address: See Table 1 Session Management Data Area Address: See Table 1 Session Management Data Area Address: See Table 1 Session Management Data Area Address: See Table 1

80

50

N/A

N/A

N/A

N/A
Reg. 15 Return Code (Hex)

0,4

0

0,4

0,4,8,C,10,14
Table 3. Summary of parameter lists for session management exit routine - function codes X'08' - X'0B'
FUNCTION ALS SELECTION EXIT REPLACEMENT EXIT REPLACED VIRTUAL ROUTE SELECTION
Offset Function Code X'08' Function Code X'09' Function Code X'0A' Function Code X'0B'
Dec Hex        

0

0

 Environment Vectors Address: See Table 1 Environment Vectors Address: See Table 1 Environment Vectors Address: See Table 1 Environment Vectors Address: See Table 1

4

4

 Function Code and Related Session Information Address: See Table 1 Function Code and Related Session Information Address: See Table 1 Function Code and Related Session Information Address: See Table 1 Function Code and Related Session Information Address: See Table 1

8

8

 User Data Field Address User Data Field Address User Data Field Address User Data Field Address

12

C

 PLU Resource ID Control Vector Address: See Table 1

N/A

N/A

 PLU Resource ID Control Vector Address: See Table 1

16

10

 SLU Resource ID Control Vector Address: See Table 1 Parameter string address from MODIFY EXIT, PARMS=command Parameter string address from MODIFY EXIT, PARMS=command SLU Resource ID Control Vector Address: See Table 1

20

14

 Session ID Address

N/A

N/A

 Session ID Address

24

18

Reserved

N/A

N/A

Reserved

28

1C

 OLU Gateway Information Vector Address: See Table 1

N/A

N/A

 OLU Gateway Information Vector Address: See Table 1

32

20

Reserved

N/A

N/A

 DLU Gateway Information Vector Address: See Table 1

36

24

 OLU Adjacent SSCP Vector Address: See Table 1

N/A

N/A

 OLU Adjacent SSCP Vector Address: See Table 1

40

28

 DLU Adjacent SSCP Vector Address: See Table 1

N/A

N/A

 DLU Adjacent SSCP Vector Address: See Table 1

44

2C

Reserved

N/A

N/A

Reserved

48

30

Reserved

N/A

N/A

Reserved

52

34

 Session Initiation User Data Field Address: See Table 1

N/A

N/A

Reserved

56

38

 ILU Resource ID Control Vector Address: See Table 1

N/A

N/A

Reserved

60

3C

 ALS List Information Vector Address: See Table 1

N/A

N/A

 VR/TP List Information Vector Address: See Table 1

64

40

 ALS Name Information Vector Address: See Table 1

N/A

N/A

N/A

68

44

 Session Authorization Data Vector Address: See Table 1

N/A

N/A

 Session Authorization Data Vector Address: See Table 1

72

48

 VTAM Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1

76

4C

 Session Management Data Area Address: See Table 1

N/A

N/A

 Session Management Data Area Address: See Table 1

80

50

N/A

N/A

N/A

N/A
Reg. 15 Return Code (Hex)

0,4,8,C,10,14

0

0

0,4
Table 4. Summary of parameter lists for session management exit routine - function codes X'0C' and X'FF'
FUNCTION HPR VIRTUAL ROUTE SELECTION END
Offset Function Code X'0C' Function Code X'FF'
Dec Hex    

0

0

 Environment Vectors Address: See Table 1 Environment Vectors Address: See Table 1

4

4

 Function Code and Related Session Information Address: See Table 1 Exit Routine Function Code Address

8

8

 User Data Field Address User Data Field Address

12

C

Reserved

N/A

16

10

Reserved

 Parameter string address from MODIFY EXIT,PARMS= command

20

14

 Session ID Address: See Session identifier

N/A

24

18

Reserved

N/A

28

1C

Reserved

N/A

32

20

Reserved

N/A

36

24

Reserved

N/A

40

28

Reserved

N/A

44

2C

Reserved

N/A

48

30

Reserved

N/A

52

34

Reserved

N/A

56

38

Reserved

N/A

60

3C

 VR/TP List Information Vector Address: See Table 1

N/A

64

40

N/A

N/A

68

44

 Session Authorization Data Vector Address: See Table 1

N/A

72

48

 VTAM Exit Services Parameter List Address: See Table 1 VTAM Exit Services Parameter List Address: See Table 1

76

4C

 Session Management Data Area Address: See Table 1

N/A

80

50

N/A

N/A
Reg. 15 Return Code (Hex)

0,4

0
Parent topic: Session management exit routine

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